System Administrator

System Administrator

Linthicum Heights, MD

Support mission-critical systems and infrastructure for the United States Air Force and DC3 by maintaining secure, reliable, and high-performing environments in high-responsibility settings.

Before You Apply

This is a full-time W-2 position with Allyon.

• Minimum active DoD Top Secret clearance required, SCI eligible
• Minimum Bachelor's degree and 8+ years of experience
• Active CompTIA Security+ certification

Candidates cannot proceed in the application process without meeting the required qualifications listed above.

Allyon does not sponsor security clearances and does not offer C2C opportunities for this role.

Why this Role Matters

Reliable systems are essential to mission success. When infrastructure performs at a high level, teams can execute with confidence.

As a Systems Administrator supporting the United States Air Force, you play a critical role in maintaining, securing, and optimizing systems that support mission-driven operations. Your work ensures environments remain stable, accessible, and ready to support evolving requirements in complex and distributed settings.

If you bring technical depth and operational awareness with the ability to solve problems and improve systems, this role offers immediate impact.

What You Will Do

You will support enterprise systems and infrastructure by:

• Maintains smooth operation of multi-user computer systems, including coordination with network engineers.
• Monitors and manages system resources, including CPU usage, disk usage, and response times to maintain operating efficiency.
• Performs systems security administration functions, including creating user profiles and accounts.
• Other duties may include setting up administrator accounts, maintaining system documentation, tuning system performance, installing system wide software and allocating mass storage space.
• Interacts with users and evaluates vendor products. Makes recommendations to purchase hardware and software, coordinates installation and provides backup recovery.
• Develops and monitors policies and standards for allocation related to the use of computing resources.
• Ability to implement, maintain, and manage physical and virtual systems and upgrades.
• May assign responsibilities for less experienced staff.
• Manage and maintain hardware and back-end software to support end users.
• Support multiple centralized anti-virus and patch management systems.
• All other duties as assigned.

Required Qualifications

• Bachelor's degree and 8+ years of experience, or Master's Degree and 6+ years of experience, or 3 years with PhD. A degree must be in one of the following fields: Information Technology, Computer Science, Software Engineering, Data Science, Information Systems, Mathematics, or Cybersecurity. In lieu of a degree in one of these fields of study, 4 years of additional relevant experience or specialized training may be considered.
• Active TS clearance, SCI eligible.
• Active CompTIA Security+ certification
• Experience building and deploying physical and virtual servers.
• Active Directory Domain and Forest Design, Implementation, and Management.
• Strong familiarity with Group Policy Objects (GPOs).
• User and group management.
• PowerShell Scripting and Windows domain services.
• DoD security hardening (STIG/SCAP).
• DNS configuration and troubleshooting.
• Familiarity with Network Security Principles (Firewalls, Intrusion Detection/Prevention).
• A strong understanding of VMWare with the ability to install, configure, manage, and troubleshoot.
• A strong understanding of Omnissa Horizon with the ability to configure, deploy and troubleshoot.
• Familiarity with Storage Area Networks (SANs), Network Attached Storage (NAS), RAID configurations and file system management.
• Familiarity with backup technologies.
• Familiarity with ACAS, Splunk, and SolarWinds.

What's In It for You

At Allyon, your compensation goes beyond salary. Our Total Rewards program is designed to lower your costs, support your wellbeing, and give you confidence in your future.

• Four flexible medical plan options with premiums averaging 15% below industry benchmarks
• Up to $1,800 in annual wellness incentives plus monthly rewards that put money back in your pocket
• $0 telemedicine visits and open access provider networks with transparent pricing
• 401(k) with modern planning tools plus HSA and FSA options for tax advantaged savings
• Dental, vision, life, disability, and supplemental coverage including accident and critical illness
• Paid time off starting on day one plus flexibility to support balance

Your compensation is designed to make a real difference day to day, giving you the support and confidence to do your best work and live well outside of it.

The expected salary range for this position is $90,000 to $105,000. Compensation is determined based on experience, technical expertise, certifications, clearance level, and alignment to mission requirements and work location. Allyon offers a comprehensive total rewards package including benefits and retirement contributions.

About Allyon

Allyon is a Federal solutions partner supporting Department of War, Intelligence, and Civilian agencies through expertise in Cybersecurity, Cloud Infrastructure & Engineering, Enterprise IT, and Program Management

For more than 15 years, we have helped government teams operate securely, efficiently, and confidently by delivering solutions that keep critical missions moving.

Our belief is simple. Mission success is built by people. We invest in our teams, our systems, and our culture with intention so our people can perform at their best and deliver when it matters most.

The Bottom Line

Ready to do meaningful work that supports real-world mission impact?

At Allyon, culture drives performance. We combine mission-critical work with a Total Rewards approach that invests in your health, financial security, and long-term growth.

If you want your skills to matter, your contributions to be recognized, and your compensation to reflect your value, this is your opportunity.

Apply today and join a people-powered team focused on mission success.